Voltaic Electronics uses a standard part in the manufacture of different types of radios. The total cost of producing 31,000 parts is $110,000, which includes fixed costs of $50,000 and variable costs of $60,000. The company can buy the part from an outside supplier for $2 per unit and avoid 20% of the fixed costs. Assume that the company can use the freed manufacturing space to make another product that can earn a profit of $15,000. If Voltaic outsources, what will be the effect on operating income? OA. decrease of $23,000 O B. increase of $15,000 OC. decrease of $10,000 OD. increase of $23,000